RingConn Gen 2 Air Smart Ring - Size 11 (Dune Gold)

RingConn Gen 2 Air (DUNE GOLD, SIZE 11). Smart Ring: DC 5V ±10% ≤16mA. SpO2 Accuracy (Arms) SpO2 range: 70% to 100%. PR accuracy: ±2 bpm or ±2%, whichever is greater. 70%-79%: ±3%. 80%-89%: ±2%. Degree of dust & water resistance: IP68.

eBay